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Atlas EZO Drivers

You can use these drivers to interface with Atlas Scientific Probes!

These drivers can be used to interface with Atlas Scientific sensors. Each driver is designed to interface with a different type of probe. You can find probe information in the knowledge section.

The drivers can be used with carrier boards. We generally use the Isolated carrier board, but you can choose other options. These carrier boards can be found in the water stations.

Setup

This page describes the setup procedure of the Atlas Scientific probes in case you bought them separately. If you have a water stations, you don't need to do this.

Manually switching circuits to I2C mode

If the drivers are new normally they come configured in UART mode so we need to change them to I2C mode.

  1. Remove circuit from carrier board.
  2. Put the circuit into a breadboard.
  3. For PH, DO, ORP and EC: Short the PGND pin to the TX pin using a jumper wire.
  4. For RTD (temperature): Short the PRB pin to the TX pin using a jumper wire.
  5. Power the device (connecting GND and VCC)
  6. Wait for LED to change from green to blue (UART→I2C) or from blue to green (I2C→>UART).
  7. Remove the jumper wire from the PGND (or PRB respectively) pin to the TX pin (Do this before removing power!).
  8. Remove power (VCC).
  9. Apply power (VCC).
  10. The device is now in the new mode (repeat all steps to switch back to previous mode).